Deliver IPC messages together with SwapCompositorFrame

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 24ff901dd48668f1c2535abbbab177c40cacb89e..d4df40b16c8158949aa49bea87209cdb8f28dcae 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1484,6 +1484,16 @@ bool RenderWidgetHostImpl::OnSwapCompositorFrame(
   scoped_ptr<cc::CompositorFrame> frame(new cc::CompositorFrame);
   uint32 output_surface_id = param.a;
   param.b.AssignTo(frame.get());
+  std::vector<IPC::Message> messages_to_deliver_with_frame;
+  messages_to_deliver_with_frame.swap(param.c);
+
+  for (std::vector<IPC::Message>::const_iterator i =
+           messages_to_deliver_with_frame.begin();
+       i != messages_to_deliver_with_frame.end();
+       ++i) {
+    GetProcess()->OnMessageReceived(*i);

[mkosiba (inactive), 2014/05/13 19:15:26]

reentrant IPC dispatch seems shady to me.

+  }
+  messages_to_deliver_with_frame.clear();
 
   for (size_t i = 0; i < frame->metadata.latency_info.size(); i++)
     AddLatencyInfoComponentIds(&frame->metadata.latency_info[i]);